What Do You Know About Parkinson Disease?

This illness has existed for thousands of years. Learn more about Parkinson disease by taking this quiz.

1. Parkinson disease is marked by a lack of which chemical in the brain?

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The brain-signaling chemical dopamine is one of many neurotransmitters in the brain. It is made by cells in the brain stem. These cells release dopamine, which helps control muscle movement. The shortage of dopamine is caused by the breakdown of neurons in the area of the brain that controls movement. The breakdown of the neurons does not stop and gets worse.

A. Serotonin
B. GABA
C. Dopamine
D. Norepinephrine
E. None of the above

2. How many Americans are affected by Parkinson disease?

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About 60,000 new cases are reported each year, according to the National Institute of Neurological Disorders and Stroke (NINDS).

A. 100,000 people
B. 200,000 people
C. 500,000 people
D. 1 million people

3. What is the average age when Parkinson disease first appears?

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The average age when people get Parkinson disease is 70. It is rare among people younger than 40, and the incidence rises with age. It is slightly more common in men than in women, according to the NINDS.

A. 25
B. 50
C. 60
D. 75

4. What is often the first symptom of Parkinson disease?

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About 7 in 10 people with Parkinson first have a slight tremor in a hand or foot, according to the Parkinson Foundation. The tremor usually occurs when the muscles are at rest and relaxed. It usually appears on 1 side of the body. Later it may spread to the other side of the body, often to a lesser degree. Common symptoms as the disease gets worse include:

Slowness of movement
Rigid or stiff muscles
A shuffling gait
A stooped posture

Secondary symptoms include:

Changes in speech
Loss of facial expression (called flat effect)
Trouble swallowing
Drooling
Dementia
Sleep problems
Depression
Memory problems and slowed thinking
Sexual dysfunction
Fatigue and aching
Urinary problems

A. Headache
B. Nausea
C. Shaking of a hand or foot
D. Turning of the head

5. How is Parkinson disease diagnosed?

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It's difficult to diagnose in the early stages. No test currently exists that can diagnose Parkinson. Usually, a neurologist makes the diagnosis. They evaluate the symptoms and how serious they are. They also assess the results of a neurological exam. The person should also see a specialist in movement disorders to make sure the correct diagnosis is made. A brain scan can help find out if the person has Parkinson or a disease with similar symptoms. Sometimes medicines used to treat Parkinson are given to the person to see if the symptoms improve.

A. With a blood test
B. With a neurological exam
C. With an X-ray
D. All of the above

6. How is Parkinson disease treated?

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Parkinson has no cure. But the symptoms often can be improved with medicine and sometimes with surgery. Treatment varies greatly from person to person. It depends on whether the symptoms are mild, moderate, or severe. Levodopa is a medicine that is often prescribed. It is converted to dopamine in the brain. It helps replace the dopamine that the brain no longer makes. Some medicines act like dopamine in the brain. Other medicines keep dopamine from being destroyed so more of it is available. It is common for a person with Parkinson to take more than 1 medicine. Possible surgeries include implanting neurostimulators, pallidotomy, and transplanting stem cells.

A. Medicine
B. Surgery
C. Radiation
D. A and B

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